abkinst[.]exe | Triage™

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General

Target
abkinst.exe
Size 2.5MB
Sample260803-ww8kvsdf29
SHA256 09c5a9cede68d51583a44b9e5c62f2b22da11a8afbfc39b33b7f3220dd65cc9a
MD5 b64221e175a7c81348c7b60e2328c55c
SHA1 90479bed9aadbcf20af0734e4197cc2cc475374d
SHA512 4f22bc4c1adbca402bbe2d6364f63ad71135940790f1327ea497fcf207e7a158998355609270c30ffc9e18a6ce0fd3146746d039173b1a8c9024d58d0a596125
SSDEEP 49152:kwRED1dhmd0uu+45fPDUHkb6rZ7S5cmUn:kwREHuJ4pPDSrsi
TLSH
T11DC5E013F2CBE43EF05E1B3305B2A05494F7AA616522BE5796ECB4ACCF351601E3E646
MD5 SHA1 SHA512 SSDEEP TLSH

Score

1^/10

installer

Malware Config

Signatures

Inno Setup is an open-source installation builder for Windows applications. 1 IoCs

Inno Setup installer

installer

resource	yara_rule
sample	innosetup

File Explorer

abkinst.exe

.exe 2.5MB

abkinst.exe

IMPHASH 40ab50289f7ef5fae60801f88d4541fc
SHA256 09c5a9cede68d51583a44b9e5c62f2b22da11a8afbfc39b33b7f3220dd65cc9a
MD5 b64221e175a7c81348c7b60e2328c55c
SHA1 90479bed9aadbcf20af0734e4197cc2cc475374d
SHA512 4f22bc4c1adbca402bbe2d6364f63ad71135940790f1327ea497fcf207e7a158998355609270c30ffc9e18a6ce0fd3146746d039173b1a8c9024d58d0a596125
SSDEEP 49152:kwRED1dhmd0uu+45fPDUHkb6rZ7S5cmUn:kwREHuJ4pPDSrsi
TLSH
T11DC5E013F2CBE43EF05E1B3305B2A05494F7AA616522BE5796ECB4ACCF351601E3E646
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x86 arch:x86

Inno Setup is an open-source installation builder for Windows applications.

Inno Setup installer

installer

Digest

81:99:3a:05:4a:1e:00:54:3b:9f:35:85:e7:98:9a:98:e0:13:2b:bd:35:4b:b6:c2:72:a1:91:f6:d7:cb:78:a4

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

CN=MindGems,O=MindGems,L=Sofia,C=BG

Chains

Nov 27, 2025

CN=MindGems,O=MindGems,L=Sofia,C=BG

CN=Microsoft ID Verified CS AOC CA 02,O=Microsoft Corporation,C=US

CN=Microsoft ID Verified Code Signing PCA 2021,O=Microsoft Corporation,C=US

CN=Microsoft Identity Verification Root Certificate Authority 2020,O=Microsoft Corporation,C=US

Subject

CN=Microsoft Identity Verification Root Certificate Authority 2020,O=Microsoft Corporation,C=US

Serial Number

54:98:d2:d1:d4:5b:19:95:48:13:79:c8:11:c0:87:99

Issuer

CN=Microsoft Identity Verification Root Certificate Authority 2020,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Apr 16, 2020 - Apr 16, 2045

Subject

CN=MindGems,O=MindGems,L=Sofia,C=BG

Serial Number

33:00:06:46:f2:e2:25:85:f8:d0:26:b5:94:00:00:00:06:46:f2

Issuer

CN=Microsoft ID Verified CS AOC CA 02,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Nov 27, 2025 - Nov 30, 2025

Subject

CN=Microsoft ID Verified CS AOC CA 02,O=Microsoft Corporation,C=US

Serial Number

33:00:00:00:04:96:50:4b:d2:db:ee:cb:88:00:00:00:00:00:04

Issuer

CN=Microsoft ID Verified Code Signing PCA 2021,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Apr 13, 2021 - Apr 13, 2026

Subject

CN=Microsoft ID Verified Code Signing PCA 2021,O=Microsoft Corporation,C=US

Serial Number

33:00:00:00:07:87:a3:34:a3:7b:a5:8e:1c:00:00:00:00:00:07

Issuer

CN=Microsoft Identity Verification Root Certificate Authority 2020,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Apr 1, 2021 - Apr 1, 2036

Subject

CN=Microsoft Public RSA Timestamping CA 2020,O=Microsoft Corporation,C=US

Serial Number

33:00:00:00:05:e5:cf:0f:ff:66:2e:c9:87:00:00:00:00:00:05

Issuer

CN=Microsoft Identity Verification Root Certificate Authority 2020,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Nov 19, 2020 - Nov 19, 2035

Subject

CN=Microsoft Public RSA Time Stamping Authority,OU=Microsoft Ireland Operations Limited+OU=nShield TSS ESN:7A1A-05E0-D947,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:53:52:c2:03:8b:e5:9a:f8:4e:00:00:00:00:00:53

Issuer

CN=Microsoft Public RSA Timestamping CA 2020,O=Microsoft Corporation,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Feb 27, 2025 - Feb 26, 2026

Minor OS version

Major OS version

Entry point

689084

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

kernel32

GetACP GetExitCodeProcess CloseHandle LocalFree SizeofResource VirtualProtect QueryPerformanceFrequency VirtualFree GetFullPathNameW GetProcessHeap ExitProcess HeapAlloc GetCPInfoExW RtlUnwind GetCPInfo GetStdHandle GetModuleHandleW FreeLibrary HeapDestroy ReadFile CreateProcessW GetLastError GetModuleFileNameW SetLastError FindResourceW CreateThread CompareStringW LoadLibraryA ResetEvent GetVolumeInformationW GetVersion GetDriveTypeW RaiseException FormatMessageW SwitchToThread GetExitCodeThread GetCurrentThread LoadLibraryExW LockResource GetCurrentThreadId UnhandledExceptionFilter VirtualQuery VirtualQueryEx Sleep EnterCriticalSection SetFilePointer LoadResource SuspendThread GetTickCount GetFileSize GetStartupInfoW GetFileAttributesW InitializeCriticalSection GetSystemWindowsDirectoryW GetThreadPriority SetThreadPriority GetCurrentProcess VirtualAlloc GetCommandLineW GetSystemInfo LeaveCriticalSection GetProcAddress ResumeThread GetVersionExW VerifyVersionInfoW HeapCreate GetWindowsDirectoryW LCMapStringW VerSetConditionMask GetDiskFreeSpaceW FindFirstFileW GetUserDefaultUILanguage lstrlenW QueryPerformanceCounter SetEndOfFile HeapFree WideCharToMultiByte FindClose MultiByteToWideChar LoadLibraryW SetEvent CreateFileW GetLocaleInfoW GetSystemDirectoryW DeleteFileW GetLocalTime GetEnvironmentVariableW WaitForSingleObject WriteFile ExitThread DeleteCriticalSection TlsGetValue GetDateFormatW SetErrorMode IsValidLocale TlsSetValue CreateDirectoryW GetSystemDefaultUILanguage EnumCalendarInfoW LocalAlloc GetUserDefaultLangID RemoveDirectoryW CreateEventW SetThreadLocale GetThreadLocale

comctl32

InitCommonControls

user32

CreateWindowExW TranslateMessage CharLowerBuffW CallWindowProcW CharUpperW PeekMessageW GetSystemMetrics SetWindowLongW MessageBoxW DestroyWindow CharUpperBuffW CharNextW MsgWaitForMultipleObjects LoadStringW ExitWindowsEx DispatchMessageW

oleaut32

SysAllocStringLen SafeArrayPtrOfIndex VariantCopy SafeArrayGetLBound SafeArrayGetUBound VariantInit VariantClear SysFreeString SysReAllocStringLen VariantChangeType SafeArrayCreate

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW OpenThreadToken AdjustTokenPrivileges LookupPrivilegeValueW RegOpenKeyExW OpenProcessToken FreeSid AllocateAndInitializeSid EqualSid RegQueryValueExW GetTokenInformation ConvertSidToStringSidW RegCloseKey

Name

.text

Size

662KB

Virtual Size

661KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.itext

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

14KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.bss

Size

Virtual Size

28KB

Characteristics

IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didata

Size

512B

Virtual Size

420B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.edata

Size

512B

Virtual Size

113B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

Virtual Size

24B

Characteristics

IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

512B

Virtual Size

93B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

68KB

Virtual Size

68KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

abkinst.exe

kernel32

comctl32

user32

oleaut32

advapi32

generic